Performance comparison of VoIP over wireless ad hoc networks using different routing protocols and queuing techniques

An Algorithmic Approach to Identify the Optimum Network Architecture and WLAN Protocol for VoIP Application

“…The literature [12][13][14] is consistent with the number of nodes known to be up to 65. On the other hand, the findings obtained using these five groups of nodes were considered suited to preserve the consistency of network efficiency, that is more nodes within the network, which means that relatively few traffic volumes cause service quality deterioration due to bandwidth ability of the fixed network.…”

“…Various efforts have been developed to evaluate the VoIP QoS parameters for the different number of nodes that are configured over IEEE technologies [12][13][14]. Pérez et al [12] introduced a simulation scenario to evaluate the IEEE 802.11e standard for a number of VoIP nodes that varied from 5 to 45 nodes; as a result of this simulation scenario, it was shown that there is an increase in average delay for VoIP application.…”

“…Over two IEEE technologies (802.11g and 11e) in AlAlawi and Al-Aqrabi [13], two QoS VoIP variables, end-to-end delay and throughput, it has been shown that VoIP services have improved over the improved IEEE standard. Nevertheless, the performance metrics of VoIP QoS were examined by Sllame et al [14] utilising different routing protocols. Only 15 nodes were used without taking into account the effects of physical layer technologies, spatial distributions or network architecture.…”

Evaluating the Impact of Routing on QoS of VoIP over MANET Wireless Networks

“…When working with multimedia we will meet three essential restrictions; first multimedia streams typically need a considerable higher bandwidth than any ordinary data streams. Second, most of the multimedia applications are of real-time traffic type such as VoIP [17] [18]. Thus, they need to be played back at the same order that had sent from the source.…”

Automating selection of optimal packet scheduling during VоIP-traffic transmission

“…Большинство из них рассматривали заявки двух-пяти различных классов, производили моделирование и на этом основании вычисляли пропускную способность сетевого устройства [1], вероятность потерь [2], время отклика и ожидания пакета [2,3], производительность [3,4]. Многие исследователи сходятся во мнении, что для большинства комбинаций классов чаще всего предпочтительной является дисциплина WFQ (Weighted Fair Queueing -взвешенное справедливое обслуживание) [1][2][3][4][5][6][7].…”